The Differential Quantized Direct Digital Frequency Synthesizer Based on Sine-Linear Phase Difference 


Vol. 41,  No. 10, pp. 1179-1182, Oct.  2016


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  Abstract

In this paper, a new method to reduce the size of ROM in the direct digital frequency synthesizer(DDFS) is proposed. This method use the sine-linear phase difference method and differential PCM. The new ROM compression method can reduce the ROM size by using the two ROM. The quantized value of sine-linear phase difference is saved by the ROM1 of the 2N sample period. The ROM2 save the difference between the original sine-linear phase difference value and the saved sample value of the ROM1. The ROM compression ratio of 37% is achieved by this method. Also, the power consumption is decreased according to the ROM size reduction.

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  Cite this article

[IEEE Style]

C. Kim, H. Lee, C. Hong, "The Differential Quantized Direct Digital Frequency Synthesizer Based on Sine-Linear Phase Difference," The Journal of Korean Institute of Communications and Information Sciences, vol. 41, no. 10, pp. 1179-1182, 2016. DOI: .

[ACM Style]

Chong-il Kim, Hyun-seung Lee, and Chan-ki Hong. 2016. The Differential Quantized Direct Digital Frequency Synthesizer Based on Sine-Linear Phase Difference. The Journal of Korean Institute of Communications and Information Sciences, 41, 10, (2016), 1179-1182. DOI: .

[KICS Style]

Chong-il Kim, Hyun-seung Lee, Chan-ki Hong, "The Differential Quantized Direct Digital Frequency Synthesizer Based on Sine-Linear Phase Difference," The Journal of Korean Institute of Communications and Information Sciences, vol. 41, no. 10, pp. 1179-1182, 10. 2016.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880